S Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant*
SOT−23 (TO−236AB)
CASE 318
STYLE 9
ANODE
1
2
ANODE
MAXIMUM RATINGS (EACH DIODE)
Rating
Peak Reverse Voltage
D.C. Reverse Voltage
MMBD2837LT1G, SMMBD2837LT1G
MMBD2838LT1G
Peak Forward Current
Average Rectified Current
Symbol
V
RM
V
R
Value
75
30
50
450
300
150
100
Unit
Vdc
Vdc
3
CATHODE
MARKING DIAGRAM
I
FM
I
O
mAdc
mAdc
xxx
A5
1
xxx M
G
G
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
= Specific Device Code
= MMBD2837LT1G,
SMMBD2837LT1G
MA6 = MMBD2838LT1G
M
= Date Code*
G
= Pb−Free Package
(Note: Microdot may be in either location)
*Date Code orientation and/or overbar may
vary depending upon manufacturing location.
THERMAL CHARACTERISTICS
Rating
Total Device Dissipation FR− 5 Board
(Note 1) T
A
= 25C
Derate above 25C
Thermal Resistance,
Junction−to−Ambient
Total Device Dissipation Alumina
Substrate, (Note 2) T
A
= 25C
Derate above 25C
Thermal Resistance,
Junction−to−Ambient
Junction and Storage Temperature
Symbol
P
D
Value
225
1.8
R
qJA
P
D
556
300
2.4
R
qJA
T
J
, T
stg
417
−55
to +150
Unit
mW
mW/C
C/W
mW
mW/C
C/W
C
ORDERING INFORMATION
Device
MMBD2837LT1G
SMMBD2837LT1G
MMBD2838LT1G
Package
SOT−23
(Pb−Free)
SOT−23
(Pb−Free)
SOT−23
(Pb−Free)
Shipping
†
3,000 /
Tape & Reel
3,000 /
Tape & Reel
3,000 /
Tape & Reel
1. FR−5 = 1.0
0.75
0.062 in.
2. Alumina = 0.4
0.3
0.024 in. 99.5% alumina.
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Semiconductor Components Industries, LLC, 2011
November, 2011
−
Rev. 7
1
Publication Order Number:
MMBD2837LT1/D
MMBD2837LT1G, MMBD2838LT1G, SMMBD2837LT1G
ELECTRICAL CHARACTERISTICS (EACH DIODE)
(T
A
= 25C unless otherwise noted)
Characteristic
Symbol
Min
Max
Unit
OFF CHARACTERISTICS
Reverse Breakdown Voltage
(I
(BR)
= 100
mAdc)
MMBD2837LT1G, SMMBD2837LT1G
MMBD2838LT1G
Reverse Voltage Leakage Current (Note 3.)
(V
R
= 30 Vdc)
MMBD2837LT1G, SMMBD2837LT1G
(V
R
= 50 Vdc)
MMBD2838LT1G
Diode Capacitance (V
R
= 0 V, f = 1.0 MHz)
Forward Voltage
(I
F
= 10 mAdc)
(I
F
= 50 mAdc)
(I
F
= 100 mAdc)
Reverse Recovery Time (I
F
= I
R
= 10 mAdc, I
R(REC)
= 1.0 mAdc) (Figure 1)
3. For each individual diode while the second diode is unbiased.
V
(BR)
35
75
I
R
−
−
C
T
V
F
−
−
−
−
−
0.1
0.1
4.0
1.0
1.0
1.2
4.0
pF
Vdc
−
−
mAdc
Vdc
t
rr
ns
820W
+10 V
2.0 k
100
mH
0.1
mF
DUT
50
W
OUTPUT
PULSE
GENERATOR
50
W
INPUT
SAMPLING
OSCILLOSCOPE
V
R
INPUT SIGNAL
90%
I
R
i
R(REC)
= 1.0 mA
OUTPUT PULSE
(I
F
= I
R
= 10 mA; MEASURED
at i
R(REC)
= 1.0 mA)
I
F
0.1
mF
t
r
10%
t
p
t
I
F
t
rr
t
Notes: 1. A 2.0 kW variable resistor adjusted for a Forward Current (I
F
) of 10 mA.
Notes: 2. Input pulse is adjusted so I
R(peak)
is equal to 10 mA.
Notes: 3. t
p
» t
rr
Figure 1. Recovery Time Equivalent Test Circuit
http://onsemi.com
2
MMBD2837LT1G, MMBD2838LT1G, SMMBD2837LT1G
CURVES APPLICABLE TO EACH CATHODE
100
I F, FORWARD CURRENT (mA)
T
A
= 85C
10
T
A
= -40C
T
A
= 25C
1.0
0.1
0.2
0.4
0.6
0.8
1.0
1.2
V
F
, FORWARD VOLTAGE (VOLTS)
Figure 2. Forward Voltage
10
T
A
= 150C
I R , REVERSE CURRENT (
m
A)
1.0
T
A
= 125C
0.1
T
A
= 85C
T
A
= 55C
0.01
T
A
= 25C
0.001
0
10
20
30
40
50
V
R
, REVERSE VOLTAGE (VOLTS)
Figure 3. Leakage Current
1.0
CD, DIODE CAPACITANCE (pF)
0.9
0.8
0.7
0.6
0
2
4
6
8
V
R
, REVERSE VOLTAGE (VOLTS)
Figure 4. Capacitance
http://onsemi.com
3
MMBD2837LT1G, MMBD2838LT1G, SMMBD2837LT1G
PACKAGE DIMENSIONS
SOT−23 (TO−236)
CASE 318−08
ISSUE AP
D
SEE VIEW C
3
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH
THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM
THICKNESS OF BASE MATERIAL.
4. DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH,
PROTRUSIONS, OR GATE BURRS.
DIM
A
A1
b
c
D
E
e
L
L1
H
E
q
MIN
0.89
0.01
0.37
0.09
2.80
1.20
1.78
0.10
0.35
2.10
0
MILLIMETERS
NOM
MAX
1.00
1.11
0.06
0.10
0.44
0.50
0.13
0.18
2.90
3.04
1.30
1.40
1.90
2.04
0.20
0.30
0.54
0.69
2.40
2.64
−−−
10
MIN
0.035
0.001
0.015
0.003
0.110
0.047
0.070
0.004
0.014
0.083
0
INCHES
NOM
0.040
0.002
0.018
0.005
0.114
0.051
0.075
0.008
0.021
0.094
−−−
MAX
0.044
0.004
0.020
0.007
0.120
0.055
0.081
0.012
0.029
0.104
10
E
1
2
HE
c
e
b
q
0.25
A
A1
L
L1
VIEW C
STYLE 9:
PIN 1. ANODE
2. ANODE
3. CATHODE
SOLDERING FOOTPRINT
0.95
0.037
0.95
0.037
2.0
0.079
0.9
0.035
SCALE 10:1
0.8
0.031
mm
inches
ON Semiconductor
and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
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and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
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